Module org.dyn4j

Package org.dyn4j.collision.manifold

Class Manifold

Object

Manifold

All Implemented Interfaces:

Copyable<Manifold>, Shiftable

public class Manifold
extends Object
implements Shiftable, Copyable<Manifold>

Represents a contact Manifold for a collision between two Convex Shapes.

A Manifold has a list of ManifoldPoints for a given Penetration normal. In two dimensions there will only be 1 or 2 contact points.

All ManifoldPoints are in world space coordinates.

Since:

1.0.0

Version:

4.0.0

Author:

William Bittle

Constructor Summary

Constructors

Constructor	Description
Manifold()	Default constructor.

Method Summary

Modifier and Type	Method	Description
void	clear()	Clears the Manifold information.
Manifold	copy()	Returns a deep copy of this object.
void	copy(Manifold manifold)	Copies (deep) the given Manifold to this Manifold.
Vector2	getNormal()	Returns the normal.
List<ManifoldPoint>	getPoints()	Returns the list of manifold points.
void	setNormal(Vector2 normal)	Sets the manifold normal.
void	setPoints(List<ManifoldPoint> points)	Sets the point list of this Manifold.
void	shift(Vector2 shift)	Translates the object to match the given coordinate shift.
String	toString()

Methods inherited from class Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Manifold

public Manifold()

Default constructor.

Method Detail

toString

public String toString()

Overrides:

toString in class Object

clear

public void clear()

Clears the Manifold information.

getPoints

public List<ManifoldPoint> getPoints()

Returns the list of manifold points.

Returns:

List<ManifoldPoint>

getNormal

public Vector2 getNormal()

Returns the normal.

Returns:

Vector2

setPoints

public void setPoints(List<ManifoldPoint> points)

Sets the point list of this Manifold.

Parameters:

points - the point list

setNormal

public void setNormal(Vector2 normal)

Sets the manifold normal.

Must be normalized.

Parameters:

normal - the manifold normal

copy

public void copy(Manifold manifold)

Copies (deep) the given Manifold to this Manifold.

Parameters:

manifold - the manifold to copy

Since:

4.0.0

shift

public void shift(Vector2 shift)

Description copied from interface: Shiftable

Translates the object to match the given coordinate shift.

Specified by:

shift in interface Shiftable

Parameters:

shift - the amount to shift along the x and y axes

copy

public Manifold copy()

Description copied from interface: Copyable

Returns a deep copy of this object.

Specified by:

copy in interface Copyable<Manifold>

Returns:

T